Volvo Community Forum. The Forums of the Volvo Owners Club

Forum Rules Volvo Owners Club About VOC Volvo Gallery Links Volvo History Volvo Press
Go Back   Volvo Owners Club Forum > "Technical Topics" > S80 '06> / V70 '07> / XC70 '07> General
Register Members CarsBlogs Help Calendar Mark Forums Read

Notices

S80 '06> / V70 '07> / XC70 '07> General Forum for the Volvo S80 '06> / V70 '07> XC70 '07> models (V70 Generation 3)

Information
  • VOC Members: There is no login facility using your VOC membership number or the details from page 3 of the club magazine. You need to register in the normal way
  • AOL Customers: Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session. This is a known issue with AOL.
  • AOL, Yahoo and Plus.net users. Forum owners such as us are finding that AOL, Yahoo and Plus.net are blocking a lot of email generated from forums. This may mean your registration activation and other emails will not get to you, or they may appear in your spam mailbox

Thread Informations

Intermittent Problem with my XC70

Views : 321

Replies : 6

Users Viewing This Thread :  

Reply
 
Thread Tools Display Modes
Old Jul 14th, 2018, 09:56   #1
Daleswalker1
New Member
 

Last Online: Jul 18th, 2018 12:45
Join Date: Jul 2018
Location: Doncaster
Default Intermittent Problem with my XC70

Hi All!

I'm new here and at the absolute end of my tether! I have an intermittent fault on my '08 XC70 (D5 SE). I'll try to keep It brief!

On occasion it develops a stutter when accelerating/decelerating, almost like fuel starvation. It will also sometimes just completely cut out leaving me stranded (usually in the most awkward of traffic situations!!). when it does this it will usually restart after 5-10 minutes and many attempts. When it does restart it doesn't usually give me any more problems.

I bought the car from almost new and have always looked after it well, I have it serviced regularly at my local Volvo dealer (who were also the original supplier), they have had it in on 4 occasions now because of this fault. 1st and 2nd time they couldn't find anything wrong, 3rd time they decided it was the fuel pressure regulator so they replaced it, problem recurred and once again they are left baffled.

I work abroad and SWMBO doesn't drive so it does get left for reasonable periods of time without being driven, I've gone down the "diesel bloom" route and this doesn't seem to be the problem.

This is my main tow car too and next time I'm home we're planning a caravan trip to France and I would love to figure something out beforehand.

Hopefully there are some wise heads out there in Volvo-land that can offer some advice....I throw myself at your mercy!!!
Daleswalker1 is offline   Reply With Quote
Old Jul 16th, 2018, 13:37   #2
Tatsfield
Master Member
 
Tatsfield's Avatar
 

Last Online: Jul 21st, 2018 17:30
Join Date: Nov 2015
Location: Poole
Default

Possibilities:

Clogged fuel filter: - change it
Clogged injectors: - Add injector cleaner to fuel and drive the car hard to clear out the fouling. Search this forum to see recommendations for injector cleaner brands.
__________________
2012 XC70 SE Lux 215 bhp D5 Auto Oyster Grey
Tatsfield is offline   Reply With Quote
Old Jul 17th, 2018, 09:34   #3
Peter86
Pete
 
Peter86's Avatar
 

Last Online: Yesterday 08:47
Join Date: May 2013
Location: North West
Default

Go for an hour spirited drive on all types of roads to clear any build up out the engine. Find somewhere with some steep hills to make it work harder. If your using cheap fuel try a couple of tanks of premium.
__________________
2003 V70 D5 [163] SE - Sold at 188,000 miles.

2011 V70 D5 [215] Rdesign - currently owned.

Peter86 is offline   Reply With Quote
Old Jul 17th, 2018, 10:28   #4
37 RUBY
Junior Member
 
37 RUBY's Avatar
 

Last Online: Jul 21st, 2018 01:42
Join Date: Jun 2017
Location: Chesterfield
Default

Quote:
Originally Posted by Daleswalker1 View Post
Hi All!

I'm new here and at the absolute end of my tether! I have an intermittent fault on my '08 XC70 (D5 SE).

On occasion it develops a stutter when accelerating/decelerating, almost like fuel starvation. It will also sometimes just completely cut out leaving me stranded (usually in the most awkward of traffic situations!!). when it does this it will usually restart after 5-10 minutesand many attempts. When it does restart it doesn't usually give me any more problems
Does this fault occur when engine is up to full temp and the engine bay is hot?

You state that it restarts between 5 & 10minutes, i.e. when heat is dissipating.

There are a myriad of electrical components/sensors that could also fail due to excess heat causing the engine to cut out.

I would ask on here if there is someone near to you with Vida ( the OE diagnostic system on a laptop) which you can hook up then go for a spirited drive and try to replicate the conditions experienced when it occurs and obtain some live data as to what components are doing what.

Did your garage not provide you with a list of stored fault codes?

As for the fuel filter/injectors opinion I would expect other symptoms of poor running to exhibit themselves if a filter or injector(s) were blocked but I'm no diesel mechanic.

I once had Citroen diesel with a blocked fuel filter which struggled to start, would barely idle and ran like it was on 2 cylinders...all the time not intermittently.

My old man had an Alfa 156 that would just stop. No fault codes, nothing. Took months to find. Turned out to be high resistance in the ECU to fuel pump connector giving a slight too low voltage cured by sand paper and a paper clip to tighten the connect pin.

It would be good to hear the final solution as so many people post then omit to tell what was the problem.

Good luck.
__________________
2015 XC70 SE NAV LUX D5

Last edited by 37 RUBY; Jul 17th, 2018 at 10:30.
37 RUBY is offline   Reply With Quote
Old Jul 17th, 2018, 18:57   #5
Tannaton
Premier Member
 
Tannaton's Avatar
 

Last Online: Yesterday 21:42
Join Date: Aug 2014
Location: Beverley, East Yorks
Default

As chap above said - unfortunately it really needs to be diagnosed by reading live data as it is showing symptoms. If it's not fuel pressure then its likely to be electrical.

Given it's a diesel engine, fuel pressure could be an issue (hence the dealer replacing the regulator) but I would expect that to cause fluctuations in engine power rather than stuttering?

A single injector could cause this if it was jamming open - again you can trace this with VIDA as you can disable injectors individually. If this is the case, it could be quietly clogging your DPF as well.

I would also check all electrical earths are sound in the engine bay, around the ECU, and the battery terminals.
__________________
2008 XC70 D5 SE Sport NAV, 2007 V50 2.0D SE, 2003 XC90 D5 SE, 2009 Ford Ranger SC, 1997 Land Rover Discovery 300Tdi (special extra rusty edition), 1977 Triumph Spitfire 1500
Tannaton is offline   Reply With Quote
Old Jul 18th, 2018, 04:58   #6
Daleswalker1
New Member
 

Last Online: Jul 18th, 2018 12:45
Join Date: Jul 2018
Location: Doncaster
Default

Thanks for all the replies guys, really appreciate it. I haven't spoken to the dealer since it was last in (working away) but I'll see if they have kept any stored fault codes. I'll run an injector cleaner through her also (may not be what the problem is but can't do any harm!) It's just frustrating that the symptoms are so intermittent and never seem to display themselves whilst the dealer has the car.
Daleswalker1 is offline   Reply With Quote
Old Jul 18th, 2018, 06:53   #7
green van man
Premier Member
 

Last Online: Yesterday 08:43
Join Date: Nov 2012
Location: Ffos y Ffin
Default

Mine lost power, not stopped, but symptoms were as if the turbo was shut off. Two sensors, an air preasure sensor on the intake and a preasure sensor on the exhaust after the dpf were changed and no problems since.

This only happened while nearly home from a caravan holiday in Scotland and only twice, as I was climbing hills. Fault diagnosed by dealer along with a bill for 420.

Don't know if the info any help to you.

Paul.
green van man is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 01:13.


Powered by vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.